Two high tides and two low tides of nearly equal level each lunar day is called

Two high tides and two low tides of nearly equal level each lunar day is called
A: Frequency of tide
B: Semidiurnal tide
C: Full diurnal tide
D: None of these

Semidiurnal tides have two equal high and low tides daily; this question tests geographical knowledge. Not frequency or full diurnal; B is correct. Step